Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 791

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Breast Cancer Before Age 40 Years

Open access
Anders, Carey K., Johnson, Rebecca, Litton, Jennifer, Phillips, Marianne, Bleyer, Archie·2009·Seminars in Oncology

Abstract

Approximately 7% of women with breast cancer are diagnosed before the age of 40 years, and this disease accounts for more than 40% of all cancer in women in this age group. Survival rates are worse when compared to those in older women, and multivariate analysis has shown younger age to be an independent predictor of adverse outcome. Inherited syndromes, specifically BRCA1 and BRCA2, must be considered when developing treatment algorithms for younger women. Chemotherapy, endocrine, and local therapies have the potential to significantly impact both the physiologic health—including future fertility, premature menopause, and bone health—and the psychological health of young women as they face a diagnosis of breast cancer.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1053/j.seminoncol.2009.03.001

Cites

1 of 1 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 1 references

Cited by

See all 791

Metadata

Authors
Anders, C. K., Johnson, R., Litton, J., Phillips, M., & Bleyer, A.
Venue
Seminars in Oncology
Publisher
Elsevier BV
Published
2009-06
Volume
36
Issue
3
Pages
237-249
ISSN
0093-7754 (ISSN-L)
OpenAlex
W2005830551
Cited by
791
References
1
FWCI
4.47
Type
journal article
Language
en
Open access
green

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Breast Cancer Before Age 40 Years. https://app.cochat.ai/papers/10.1053/j.seminoncol.2009.03.001
The paper
Anders, C. K., Johnson, R., Litton, J., Phillips, M., & Bleyer, A. (2009). Breast Cancer Before Age 40 Years. Seminars in Oncology. https://doi.org/10.1053/j.seminoncol.2009.03.001

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.